# TfxEcho vs Lullaby Button

The clearest difference is price: Lullaby Button at Free against TfxEcho's $4.99. Lullaby Button also leads on update cadence (every 9 days vs every 3 months). TfxEcho's advantage is in-app purchases (none vs 2) and chart position (#185 vs unranked). On ads, device support and iOS requirement there is nothing between them.

Lullaby Button is free to download; TfxEcho costs $4.99 up front. Lullaby Button sells 2 in-app purchases, starting at $0.99 per month. TfxEcho asks for nothing beyond the download.

TfxEcho ships an update every 3 months, Lullaby Button every 9 days. Both last shipped on September 20, 2026.

## The numbers

| Metric | TfxEcho | Lullaby Button |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.7 (12 ratings)](https://appshunter.io/ios/app/tfxecho/id1523777426/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 9 days** |
| Monetization | Paid | — |
| Best chart rank | **#185** | — |
| Size | 1 MB | 152 MB |
| Requires iOS | 13.5 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ryo Togawa](https://appshunter.io/developer/1474193056) | [OSMAN MURAT TUGSUZ](https://appshunter.io/developer/1878623227) |

## What reviewers say

### TfxEcho

[App page](https://appshunter.io/ios/app/tfxecho/id1523777426)

**Currently charting:** #185 Top Paid · Music (US App Store)

This audio plugin offers a warm, dark echo effect inspired by analog delay units. It allows for adjustable delay times, feedback, and filters, with modulation capabilities and tempo syncing. The plugin captures high-frequency signals for a versatile sound.

**Highlights:** Echo and delay effect, BBD-inspired delay lines, Adjustable delay time (20-1200 ms), Feedback control (0-100%), Low-pass and high-pass filters, Modulation rate and width, Tempo sync

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Lullaby Button

[App page](https://appshunter.io/ios/app/lullaby-button/id6759444161)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lullaby Button Premium | $0.99 | per month |
| Lullaby Button Premium | $4.99 | per year |


## Frequently asked questions

### Is TfxEcho free?

TfxEcho costs $4.99, with no in-app purchases.

### Is Lullaby Button free?

Lullaby Button is free to download, with in-app purchases available.

### Do TfxEcho or Lullaby Button have ads?

Neither TfxEcho nor Lullaby Button shows ads.

### Which is updated more often, TfxEcho or Lullaby Button?

TfxEcho ships an update every 3 months, and Lullaby Button every 9 days. Most recently, TfxEcho was updated on September 20, 2026 and Lullaby Button on September 20, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*